I'll weigh in with my two cents. We have a trip also at Spring Break - will be there in exactly 30 days. I really only want to cancel if things are dire. DH wants to make a call, either way, soon so that we can plan something else, if needed. I just think it's too early to call.
We are
DVC so we are using our points, not renting, as in your case. Even still, I don't want to throw away the money we have spent that we would lose (mostly the cost of our DAH tickets - do we know, yet, what would happen with park tickets?). I just think that we will have to take all of the appropriate precautions (like I'm wiping down our seats on the airplane before we sit down) and just be vigilant for signs of any illness. The only thing we won't know is if we become an unknowing carrier of the virus and add to the spread. But what can we do? I don't want to live in fear and miss out on something that I've been looking forward to. You and I have been stalking the ROTR BG thread, so I know you are looking forward to this trip just as much as I am. I'm not ready to give up on this. In my mind, this decision will have to be made for me, like a true travel advisory/the parks close down.